Optimising Aquaculture: The Algae-Free Approach
- Vik Mendoza
- Nov 21, 2024
- 2 min read
Updated: 2 days ago
Algae growth poses a significant threat to the salmon aquaculture industry. Excessive algae growth can cause mass fish mortality, contaminate seafood, and create a considerable cost for keeping nets clean and algae-free.
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Here's a breakdown of the primary threats:
Cleaning Challenges: Removing algae from fish nets is a significant undertaking. This process is costly and time-consuming, and removes resources from proactive fish care.
Direct Fish Health Impact: When nets are cleaned, the algae gather in them until the tide or current takes them away. This algae is either consumed by the fish or clogs up their gills. Certain algae species can also produce toxins that are lethal to fish. These toxins impair nervous systems and lead to rapid death.
Dissolved Oxygen Depletion: As algae gather on nets or blooms, they consume large amounts of oxygen during respiration. This can lead to oxygen depletion in the water, suffocating fish and creating high mortality rates.
Economic Losses: Fish mortality, reduced growth rates, and increased cleaning costs due to algal blooms can result in substantial financial losses for the salmon aquaculture industry.
Algae growth presents a complex and multifaceted challenge to the salmon aquaculture industry. Addressing this issue requires a multi-pronged approach, including monitoring water quality, implementing early warning systems, exploring mitigation strategies, and promoting sustainable aquaculture practices.
It also requires an eco-friendly, chemical-free solution that meets strict environmental standards.

Hydro Synergy has developed innovative solutions that offer long-term and viable algae control without chemicals and, most importantly, without harm to the fish.
We disrupt algae cells and their reproduction systems using Critical Structural Resonance (CSR), which ruptures the cell membrane. We also target the build-up of biofilm, a nutrient source for the algae, and address the build-up of algae before it starts its growth cycle.
In New Zealand, we have been pioneering ultrasonic solutions for sustainable algae elimination in aquaculture, strengthening the industry's commitment to chemical-free practices. We aim to help farms maintain an optimal aquatic environment, supporting healthy fish stocks and improving farm productivity.
Benefits of Algae Control with Ultrasonic Technology
1. Healthier Fish Stocks: Effective algae management improves water quality and oxygen levels, lowering mortality rates and growing healthier fish.
2. Increased Productivity: A stable, algae-free environment promotes faster fish growth because the fish feed more frequently, supporting higher yields and profitability. Decreasing the time a fish matures by only one month significantly covers any capital costs involved, let alone operational cost savings.
3. Sustainable Practice: Algae control through ultrasonic methods aligns with international sustainability goals, reducing chemical usage and preserving natural water quality.

Aquaculture farms can significantly enhance their water quality management by investing in ultrasonic algae control technologies from Hydro Synergy.
This modern approach to algae control supports sustainable, efficient, and eco-friendly practices, providing a healthier environment for fish stocks to thrive.
Ready to protect your salmon stocks, reduce costs, and embrace a sustainable, chemical-free approach to algae control? Discover how Hydro Synergy's ultrasonic technology can transform your aquaculture farm.
Learn more about our innovative solutions or get in touch today!
Email us at: support@hydrosynergy.co.nz Call us on: 0800 - NOALGAE (6625423)
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